a. Using the USER TAB; landfill open year is 2010, closure year is 2035. The landfill accepts 5,000 Mg/day and is open 3

[answerhappygod]

A Using The User Tab Landfill Open Year Is 2010 Closure Year Is 2035 The Landfill Accepts 5 000 Mg Day And Is Open 3 1 (82.76 KiB) Viewed 31 times

a. Using the USER TAB; landfill open year is 2010, closure year is 2035. The landfill accepts 5,000 Mg/day and is open 360 days a year. Assume waste acceptance rate increases 5% per year until closure. i. Using a capture/collected efficiency of 75%, determine the total landfill gas collected in (ft3/min) year 2022. Assume methane generation rate of 0.05/year and a methane generation capacity of 170 m³/Mg, NMOC concentration of 600 ppm, and methane content of 50%. ii. Using a capture/collected efficiency of 75%, determine the total landfill gas collected in (ft3/min) year 2022. Assume methane generation rate of 0.05/year and a methane generation capacity of 100 m³/Mg, NMOC concentration of 600 ppm, and methane content of 50%. iii. What can be attributed to the difference in collected landfill gas? 2. Determine the diameter of a landfill gas header pipe (assuming SDR17) for the following conditions. Calculate the pipe velocity for a range of pipe diameters (starting at 6 inches and ending at 48 inches). a. Quantity of flow to be handled is 5,000 ft³/min; temperature of 100°F; pressure (or applied vacuum) of 40in.WC. The gas composition is 50% methane, 48% carbon dioxide, 2% air. The elevation at the site is 560 feet. [Assume concurrent flow (gas and water flowing in the same direction; maximum design velocity of 40 ft/sec)].